Is There Such a Thing as Surface Filtration?
October 1, 2017
It is often said that the range of filtration processes is divided into four classes, with one developing further into a fifth
One Minute Filtration Articles
Particulate Matter in Ambient Air
September 1, 2017
Particulate matter (PM) is a pollutant as a mixture of solid particles, liquid droplets and mixture of solid and liquid particles in
Coagulation, Flocculation, and Agglomeration
September 1, 2017
Agglomeration Agglomeration refers to the formation of more or less firmly bound primary particles by collision processes between primary particles, primary particles
Fundamentals of Gas Filtration: Particle Capture Mechanisms
September 1, 2017
Understanding the ability of filter media to collect particles from a gas stream passing through it is key to the successful filter
Testing Compatibilities of Filter Media with Liquids
August 1, 2017
The first quality of a liquid filtering media is its permeability, i.e. how easily a liquid can flow through the filter. The
Shear Viscosity
August 1, 2017
Viscosity is a measure of the flowability of a fluid. It is measured in Pa.s The greater the viscosity, the more viscous
Primer on Hydrophilic, Hydrophobic, and Oleophobic Media
August 1, 2017
Hydrophilic Hydrophilic means water loving. Most common filters use hydrophilic media. Examples of hydrophilic filters are that wet or “wet-out” with water
Coagulation and Flocculation to Improve Solid/Liquid Separation Process
August 1, 2017
Chemical treatment means the use of coagulants or flocculants to enhance the agglomeration of solid particles in the slurry to form larger
Size Distribution and Sources of Particles in Ambient Air
July 1, 2017
Particle Size and Distribution in Ambient Air The particle sizes in the ambient air are ranged from 1 nanometer to slightly more
Cigarette Smoke: Size Distribution and Effects on Filters
July 1, 2017
Cigarette smoke is an important aerosol in the air filtration industry and research. It is an unwanted aerosol and therefore there are
Centrifugation in Bioseparation
July 1, 2017
Filtration is often reaching its limits in the industrial separation of biomass like cells or other micro organisms from e.g. fermentation broth.
Filter Aids
June 1, 2017
“Filter Aids” is a group of inert materials that can be used in filtration pretreatment. There are two objectives related to the